Measuring and comparing with scaled units
"Let's dig in and measure!" says Bo. "Pick the right tool, read the scale carefully, and always say the unit — centimetres, grams, litres."
1. A log is 1 m 35 cm long. How many centimetres is that?
2. Put these lengths in order, shortest first: 90 cm, 1 m, 45 cm, 2 m.
3. Bo's bucket holds 2 litres. He pours in 750 mL of creek water. How much more fits?
4. Two gumnuts balance the scale against one acorn. If a gumnut is 5 g, what is the acorn's mass?
5. Bo covers a leaf with square tiles to find its area. Count the squares (count a half-or-more square as 1) and write the area in square units.
Area ≈ square units
6. Which is the better tool to measure the creek's width: Bo's paw, or a metre tape? Explain why.